Nortel DMS-100 Series Maintenance Manual page 424

10-4 Troubleshooting chart
Clearing an SMS alarm
Alarm condition
Major (continued)
297-8231-550 Standard 09.01 August 1998
(continued)
Possible cause
DS30 link has faults.
Master or signaling processor
has faults
—continued—
Action
Proceed as follows:
1 Silence the alarm.
2 Identify the SMS unit in
the ISTb condition.
3 Post the SMS unit in the
ISTb condition.
4 Identify the problems with
the posted SMS unit.
5 Busy and test the posted
SMS unit.
6 Return to service the
posted SMS unit.
Proceed as follows:
1 Silence the alarm.
2 Identify the SMS unit in
the ISTb condition.
3 Post the SMS unit in the
ISTb condition.
4 Identify the problems with
the posted SMS unit
5 Busy and test the posted
SMS unit
6 Return to service the
posted SMS unit.